Railway-brake



I", MIYAGL RAILWAY BRAKE. APPLICATION HLEDJAH. 8, 19 21.

: Irv a \WA QW H .m\ Hi I T. MIYAGI. RAILWAY BRAKE, APPLICATION nun'mma, 192?.

Nov. 15,1921,

T. MIYAGI.

RAILWAY BRAKE. I APPLICATION F|LED JAN- 8, I921.

LSQTLQQS I Patenbsd Nov. 15, 1921.

5SHEETSSHEET 3.

T. M lYAGI.

RAILWAY BRAKE. APPLICATION FILED JAN- 8.191- 3QTZAQ$ Patenmd Nov. 15 1921,

5 SHEETS-SHEET 4.

' T. #VIIYAGD. RAILWAY BRAKE. APPLICATION HLEDJAPl-B. I92]. 1 7 44 PatentNov. 15 1192110 w s SHEETS-SHEET 5.

A ITOHWEY {Other objects UNITED STATES PATENT OFFICE.-

TAKEO HIYAGI, OF WAIIEAHU, TERRITORY OF HAWAII.

RAILWAY-BRAKE.

Specification of Letters Patent.

Patented Nov. 15, 1921.

Application filed January 8, 1921. Serial 110.. 435,871.

Waipahu in the city of Hlnolulu and Terripecification.

capacity of regulating the speed of the cars of a train conformably to that of the locomotive with a view to preventing bumping of the cars when the speed of the locomotive is Blackened.

and practical advantages of theinvention will be fully understood from 12-12 of Fig. 13.

@dicated'by 1 Similar I :F designate corresponding parts inall' of the 5 views of the drawings. 1 Infurtheranoe of my invention I- equ p the following description andclaims when the sa are read in connection with the drawings, forming part hereof, in which:

Figure 1 is a side elevation of a railway car equipped with the best practical embodiment of my invention of which I am cognizant.

1 Fig. 2 is aninverted plan of the same. Fig. 3 is an enlarged detail plan ofone of the couplers of the car.

Fig. 4 is a front elevation of the brake adjusting means.

5 is a side elevation of the same.

the b rake adjusting means in the plane indicated by the line 6-6 of Fig. 7

Fig. 7 is a vertical section taken in the plane indicated by the line 7-7 of Fig. 6.

Fig. 8 is a detail horizontal section as taken in the plane indicated by the line-88 I of Fig. 7. I

Fig. 9'is a detail plan view of the lever that is connected with the couplers.

Fig. 10 is a plan view of the lever connected with the brake shoes. Fig. 11 is a plan view'of the lever that is connected with the hand brake means.

Fig. 12.13 a section taken through the emergency stopvalvecomprised in my 111- vention; said section being taken on the line that is Fig. 13 is asection taken in the plane indi-, cated by the line 13-43 of Fig. 12.

' F His 9. section taken in the plane the line 14-14 of Fig. 12. 1 letters and numerals of reference sure.

6 is a horizontal section taken through adjusting means. .the brake adjusting means isa shaft 37 which extends loosely through the said disk the railway car A at its opposite ends with coupler heads 17, the said heads .17 being carried by drawer bars 15, outward endwise movement of which is resisted by springs 16. At their inner ends the drawer bars 15 are connected through the medium of links 14 wlth levers 13. Each of the levers 13 is-ful- "crumed at or about its center, and to the ends of the levers are connected rods 11" and 12.

Also in furtherance of myinvention I arrange below the car body the brake adjusting means illustrated in detail in Figs. 4to 1 4. The said brake adjusting meansis bolted to the floor joist of the car body or is otherwise appropriately connected to the said body. It will be readily apparentthat the said brake'adjusting means comprises a train pipe 1, and

a cylinder 19 in which is a iectilinearly movable piston 20. Through the train pipe 1 air or other fluid under pressure is supplied to a chamber 2; it being understood that the train pipe as its name imports, is designed to extend throughout the length of a train and to be connected with means for supplying fluid under presof the chamber 2 is closed through the medium of a disk 4. Spaced from the said disk 4 is a plate or wall 10, and formed in the disk 1 and plate 10 are sector-shaped open-- ings 5 and 6; the opening 5 in the disk 4 be ing coincident with the corresponding opening 5 in the plate 10, and the opening 6 in the disk i being coincident with the corre sponding opening 6 in the plate 10. The

disk 4: and the plate '10 are appropriately fixed with respect to the body of the brake Carried by the body of 4.- and plate 10, and interposed between the disk 4 and the plate 10 is a lever 7 in whic are ports 8 and '9. This lever 7 is connected at or adjacent to its ends to the before-mentioned rods 11 and 12 that extend to the levers 13 in connection 'with the drawer :bars- 15 of the coupler head 17.

It will beund'erstood from the foregoing that incident to thestarting of a; train the couplersofthe car are subjected-toendwise 13 are rocked about their axes. When the aleve rs 13 areiso'mocked, the levee-7 :will" be turned; clockwise. withtlie a'esult' 'that the The chamber 2 is divided by a partition 3 into chamber sections, and the bottom outward pull, With-the result that ltheleve'rs I v openingsb in the disk 4 will be closed, and the port 8 in the l'ever7 will be moved into registration with the opening 6 in the disk 4. This will bring about the exhaust 'oriiischarge of the fluid under pressure from the cylinder 19 through the conduit 18, Fig. 7,

the port 8 in the lever 7, the port 6 inthedisk 4, the'left-hand chamber sectionof the element 2, the conduit 21', Fight, the air; duct 22, Figs. 6 and 14, and the port 23 to" the atmosphere. At the same time fluid under pressure is cut off from the cylinder 19- by reason of the port 5 being closed. It will be noticed inthis connection that the train pipe 1 is connected by a branch pipe 1" with the chamber-section 2 that is in communication with the port 5, and consequently when the port or opening 5 is closed no fluid under pressure can find its way to the ,cyl-

inder 19 and hence the brakes will be re leased, with the resultthat the cars may be moved without interference. I

In the event of the speed of the locomo: tive being reduced below the speed ofthe cars coupled to thelocomotive the springs 16 operate to move the drawer bars 15 endwise inwardly and in consequence the levers 13 are rocked reversely to the before-described movement-of the levers 13. Coincident with the rocking of the levers 13, when the drawerbars 15 are movedendwise inwardly, the lever 7 will be swung in anti-clockwise direc--.

tion, whereupon the port 9 of thelever 7 "will be registered with the ports 5 of the'disk 4; and plate 10, the exhaust ,ports 6 of'the disk 4 and plate 10 being at this time closed. In consequence of thelast named positioning of'the lever? fluid under pressureenters the cylinder 19 and operates'to move the piston 20 toward the left in Fig. 7. -Now it'will be understood that the piston 20 is connected through the medium of a rod' 24 ,with' a swinging disk 25, and that when the piston is moved toward the left in Fig. 7 the movement of-the disk 25 will be anti-clockwise. Incident to the turning of the disk 25 a lever 28, Figs. 7 and 10 is turned in the same direction as the disk 25, this being due to the fact thatthe disk 25 is provided with pendent pins 26 and 27, and that the said pins 26 and 27 are opposed to abutments 26 on the lever 28 The said swinging move 'ment of the lever .28 will manifestly-be attended by application of the brakes which are connected with the lever 28 through the medium of the rods 29 and 30, Figs; 2 and '10. The same operation will take place when the train is passing ,down a grade-and whenthe cars'have a tendency to overcome the locomotive.

As. illustrated in brakes 3,6jareconnected by rods 34 and 35,

respectively-{with a lever 31,.Figsi 7 and '11. Therefore, when either of the hand brakes Fig. 2, the ear A is. equipped with hand brake-s36. These hand 36 is actuated the lever31 :will be swung in an anti-clockwise direction, and shoulders 31f on the lever 31 will operate against pendentfpins 32 and 33 so as to turn thelever 28 in the same. direction as the lever 31 and seat the brakes; it being understood in: this C t n h t the pins 32 and 33 depend from the lever'28.

When it is necessary to stop the car -.illus-.

trated, or any tantra: train equipped with my improvement, whilelthe' train is moving forwardly. the emergencvf stop valve illustrated in Figs. 12 t'o114'islput ifito this connectlon it will {be understood that when the chain 47', ShOwn'iniFig. 1, is'moved,

in the direction indicated by. the arrow, 9.

wheel 48, Fig. 1, will beturned in'clockwise' direction. The said wheel. 48 is connectedthrough the medium of a chain' belt 47 with "a disk 42, and when the wheel 48 'is turned in clockwise direction the disk 42 will be turned in the same direction until the duct l It will be appreciated ioux/the foregoing that my improvement provides for the. .automatic setting and release of the brakes,

and for the emergency setting of the brakes. all of whichfeatures contribute to tor of safety, as'is desirable.

.The construction'as herein shownand described is-for use'when the locomotive is attached to, the forward end of the train When the "locomotive'is 'to be locatedat' the rearend of'a train for the'purpose of-push the trac j ing'insteadof pulling-thetra'in, I'c'ontemplate providing'the trainjpipe 1 at a point conveniently accessible by the engineer with an auxiliary stop valve similar, to'the valve shown in Fig. .14; the, said auxiliary stop 'VfllVB being so constructedand arranged that when thesaine is closed,"-flu'id under pressure will be exhausted from the-cylinder 19 and the supply of "fluid under pres sure to-the cylinder19 will'be'cut off, with the result that all of the brakes will be re leased.

Having described 'my inventiomiwhatl claim and desire to secure" by Letters-Patent,

1. In a railway brake. the combination of brake shoes. rods connected therewith, a lever connected with said rods, a lever a1- ranged in parallel relation to the first-named lever. one of said levers ha-vinti piil a the other abutmentsopposed to tliespins. :1 cylinder, a piston movable in the cylinder andto out the cylinder oil from the train'pipeand establish communication between the connected. with thd second-named lever, train pipe for fluid under pressure, means to establish communication between the train pipe and the cylinder to set the brake shoes a ainstwheels, .and movable control means brake cylinder and the atmosphere to release the brakeshoes.

2. In a railway brake, the combination of ranged in parallel relation to the first-named lever, one of said-levershavino' pins and the other abutments opposed to the pins, :1 cylinder, a piston mvable-in the cylinder and connected with the second-named lever, a

trainpipe, for fluid under pressure, means to establish communication between the train pipe and the cylinder to setthe brake shoes against wheels, and movable control means to cut the cylinder off from the train pipe and establish communication between the brake cylinder and the atmosphere to release the brake shoes, with; draw-bars, and means connecting the draw-bars and said movable control means and arranged to move the latter for-the supplyef fluid-under pressure to the cylinder wheii the draw-bars are re'-' lieved of pull, and to move the control means for the'exhaust of fluid underpressure from 1 the cylinder when the draw-bars are subjected'to pull.

- 3. In a railway brake, the combination of brake shoes, rods connected therewith, a lever connected with said rods, a lever arranged inparallel relation to the first-named lever, "one of said levers having other abutments opposed to the pins, a cylinder, a piston movable'in the cylinder and connected with the second-named lever, a

, train pipe for fluid under pressure, means to establish communication between the train pipe and the cylinder'to set the brake-shoes against "wheels, and movable control means to cut the cylinder off from the tram pipe and establish communication'between the brake cylinder and the atmosphere to re the exhaust of v cylinder when the draw-bars are sub ected to lease'the brake shoes, with draw-bars, means connecting the draw-bars andsaid movable.

control means and arranged to move the latter for the supply of fluid under pressure to a the cylider when the draw-bars are relieved of pull, and to move the control means for fluid under pressure from the ull, and manually-operable "means con nected with the second-named 1ever..

a. In a railway brake, th'e combination of brake shoes, rods connectedtherewith, a "lever connected rangedin parallel relation to the first-named lever, one of said levers having p ns and the a cyl nder, a piston movable in thecylinder and pins and the wtih said rods, a lever araconnected with the second-named. lever, a

train pipe for fluid undervpressure, means to establish communication between the train pipe and the-cylinder to set the brake shoes against wheels, and movable control means to out the cylinder ofl from the train pipe and establish communication between the brake cylinder and the atmosphere to release the brake shoes,'with draw-bars, means connecting the draw-bars and'said movable'control means and arranged to move the latter for the supply of fluid under pressure to the cylinder when the draw-bars are relieved of pull, and to move the control means for the exhaust of fluid under pressure from the cylinder when the draw-bars are subjected to pull, and a'manually-operable emergency valve adapted when actuated to bring about the supply of fluid under pressure to the cylinderg a-nd the application of. the brake sshoes.

and connected with the second-named lever.

a train pipe for fluid under pressure, means to establish communication between the train pipe and the cylinder to set the'bral-ze shoes: against wheels, and movable control means tov cut the cylinder oi? from the train pipe and establish, communication between the brake cylinder and the atmosphere to release the brake shoes, with draw-bars. means con'necting the dr rs and said movable control means irr'anged to move the latter for thesup fluid inder pressure to the cylinder .whe

means for the exhaust oi fluid under pressure from the cylinder when the draw-bars are subjected to pull, manually-operable means connected with the second-named lever and a manually-operable emergency valve adapted when actuated to bring. about the supply of fluid under pressure to the cylinde'r and the application of the brake shoes. 1 '6; Fluid pressure brake control means comprising a train pipe, a cylinder, a piston movable in the cylinder and adapted to be connected with a movable brake shoe, movable draft means, and movable means controlled by movement of the draft means to establish communication between the train pipe and the cylinder when the draft means is relieved of pull and to out OK said communication and establishcommunication between the cylinder and the atmosphere when the draft means is subjected to pull.

-. 'Z.' Fluid-. pressure brake control means u he draw-Inn's are relieved of pull, and to move the control lish communication between the 7 connected with amovable brake shoe, mov able draft means, and movable means controlled by movement of the draft means,

to establish communication between the train pipe and the cylinder when the draft means is relieved of pull and to cut off said comable draft means, and movable means conrolled by movement of the draft means to establish communication between the train pipe and the cylinder when the draft means is-r'elieved of pull and to cut off said I 1 communication and establish communication between the cylinder and the atmosphere when the draft means is subjected to pull, in combination with manually-operable emer- 'gency means to cutoff communication between the cylinder and the atmosphere and to establish communication between the train pipe and the cylinder, and manually-0perable means to apply the, brake shoe mechanically and independently of the fluid pressure means.

9. Fluid pressure railway brake means comprising a train pipe, a cylinder, a piston therein, movable draft means, chamber sections, a conduit between the train pipe and one of said chamber sections, a conduit leading to the cylinder, an exhaust conduit, and a lever connected with and movable by the draft means to establish in one position communication between the train pipe and the cylinder and to establish in another position communication between the cylinder and the atmosphere' 10. Fluid pressure railway brake means comprising a train pipe, a cylinder,a piston therein, movable draft means, chamber secmemes tions, a conduit between the train pipe and one of said chamber sections, 'a conduit leading to the cylinder, an exhaust conduit, and a lever connectedwith and movableby the draft means to establish in one position communication between the train pipe and the cylinder and to'establish in another position connnunication between the cylinder and the atmosphere, in combination with anianuaily-operable valve to establish com munication between the train pipe and the cylinder.

ll. Fluid pressure railway brake means comprising a train pipe, a cylinder, a piston ih. .ein, movable draft means, chamber sec 'tions. a conduit between the train pipe and one of said chamber sections, a conduit lead ng to the cylinder, an exhaust conduit, and a lever connected with and movable by the draft means to establish in one position communication between the train pipe and the cylinder and to establish in another position communication betweenv the cylinder and the atmosphere, in combination with a manually-operable lever, and a lever included in a connection between the piston and a brake shoe and arranged to be moved by said manually-operable lever.

Fluid pressure railway brake means comprising a train pipe, a cylinder, a piston therein, movable draft means, chamber sections, a conduit between the train pipe and one of said chamber sections, a conduit leading; to the cylinder, an exhaust conduit, and a lever connected with and movable by the draft means to establish in one position communication between the train pipe and the cylinder and to establish in another position communication between the cylinder and the atmosphere, in combination "with a manually-operable valve to establish communica tion between the train pipe and the cylinder, a mannally-operable lever, and a lever included in a connection between the piston and a brake shoe and arranged to be .moved by said manually-operable lever.

In testimony whereof I affix my signature.

TAKEO MI'YAGI. 

